Mobile communication terminal
First Claim
1. A mobile communication terminal comprising a wireless signal transceiver for receiving and transmitting wireless signals, a pressure sensor for measuring atmospheric pressure, processing means for determining from the measured atmospheric pressure the altitude of the communication terminal, means for determining the horizontal position at the location of the mobile communication terminal, and means for determining the ground level at said location using said determined horizontal position.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to a mobile communication terminal, advantangeously a mobile phone. According to the invention, the communication terminal includes a barometric altimeter. The altimeter can be recalibrated using means for determining the horizontal position of the mobile communication terminal, and means for determining the ground level at the horizontal position. The invention relates further to a method of calibrating a barometric altimeter of a mobile communication terminal, in which the horizontal position of the mobile communication terminal is determined, the ground level is determined using the determined horizontal position, the atmospheric pressure is measured at the location of the mobile communication terminal and the determined ground level is used to calibrate the barometric altimeter. Further, the invention relates to a method of determining the altitude of a mobile communication terminal, by establishing the horizontal position of the mobile communication terminal and determining the ground level at the horizontal position.
46 Citations
31 Claims
- 1. A mobile communication terminal comprising a wireless signal transceiver for receiving and transmitting wireless signals, a pressure sensor for measuring atmospheric pressure, processing means for determining from the measured atmospheric pressure the altitude of the communication terminal, means for determining the horizontal position at the location of the mobile communication terminal, and means for determining the ground level at said location using said determined horizontal position.
-
16. Method of calibrating a barometric altimeter of a mobile communication terminal, comprising the steps of
determining the horizontal position at the location of the mobile communication terminal, determining the ground level at said location using the determined horizontal position, measuring the atmospheric pressure at the location of the mobile communication terminal; - and
using the determined ground level to calibrate said barometric altimeter. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
- and
-
24. Method of determining the altitude of a mobile communication terminal, comprising the steps of
establishing the horizontal position of the mobile communication terminal, and determining the ground level at said horizontal position.
Specification